11=r-8

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Solution for 11=r-8 equation: 


Simplifying
11 = r + -8

Reorder the terms:
11 = -8 + r

Solving
11 = -8 + r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-1r' to each side of the equation.
11 + -1r = -8 + r + -1r

Combine like terms: r + -1r = 0
11 + -1r = -8 + 0
11 + -1r = -8

Add '-11' to each side of the equation.
11 + -11 + -1r = -8 + -11

Combine like terms: 11 + -11 = 0
0 + -1r = -8 + -11
-1r = -8 + -11

Combine like terms: -8 + -11 = -19
-1r = -19

Divide each side by '-1'.
r = 19

Simplifying
r = 19

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